A misspelling of Hennessy, a Cognacliquor somewhat recently popularized by Tupac Shakur and several other performers. As listed in urbanDictionary, evidence of the mentality of many consumers of said liquor.

"LOL **** this hennesy crunk I poured got me royally ****ed up over here!!!"
"It's Hennessy, and Red Bull and Cognac don't mix, dip****."
"what the f*** your problem man? it all good"
"Not if you're making it out of my fridge."